Add cross-references between urllib.urlencode() and cgi.parse_qs[l]().
Closes SF bug #724751.
diff --git a/Doc/lib/libcgi.tex b/Doc/lib/libcgi.tex
index 83e5e77..38798d4 100644
--- a/Doc/lib/libcgi.tex
+++ b/Doc/lib/libcgi.tex
@@ -351,6 +351,9 @@
 to do with parsing errors.  If false (the default), errors
 are silently ignored.  If true, errors raise a ValueError
 exception.
+
+Use the \function{\refmodule{cgi}.urlencode()} function to convert
+such lists of pairs into query strings.
 \end{funcdesc}
 
 \begin{funcdesc}{parse_multipart}{fp, pdict}